This is a bit of my mantra, and as a former BL it's hard to lose that mindset. I'm self taught and don't read music (at a functional level anyway). While I can use tabs, as a former guitar player I prefer a chord and lyric sheet and add my bass cliff notes. In the band I'm in now a few of the long time members use sheet music and tend to be a little sticky about keeping to the original structures, for example we play the Santana version of Black magic woman, and while the bass line is pretty iconic in my past band live's a simple head nod on when to transition from the intro or into the outro (not in this band)... it's similar with the ABB version of Whipping post, the intro in 11/4, I have to use a pick to keep that in time... (I'm no Berry Oakley). I guess I'm just venting a bit, I've always used my song sheets as cliff notes rather than actually having to use them. And at the end of the day, after a year with this band my playing has improved quite a bit, and haven't been asked to leave1. Most patrons want to hear what they know.
2. Depending on the song, an original cover can work if done well.
3. Too many bands use this as an excuse to half-@$$ it.
"2. Depending on the song, an original cover can work if done well."
I had short stint as roadie for the Knack (many moons ago) and they used to do a version of "Hard days night" and it was as good if not a little more rocked out than the Beatles version, mostly because of the improvement in instruments and sound tech (plus Bruce Gary was an amazing drummer). I kind of use that as my litmus test on covers, Tom Petty and the HB's were another great cover band... if you can't nail it to that level, take the other route and do your own version. It's worked for the Grateful Dead and Jimmy Buffett... I see the majority of comments tend to be along the make it your own version track (without abusing the original).
Appreciate the feedback...